*SUPPORT*
IN: dax fep OUT: RED BLUE
IN: kiki OUT: GREEN
IN: kiki wif fep fep OUT: GREEN BLUE BLUE GREEN GREEN
IN: fep wif dax zup dax OUT: BLUE RED RED RED BLUE BLUE
IN: tufa tufa wif fep OUT: YELLOW YELLOW BLUE YELLOW YELLOW
IN: dax fep tufa zup dax OUT: RED RED RED BLUE YELLOW
IN: kiki wif dax zup tufa OUT: GREEN YELLOW YELLOW RED GREEN GREEN
IN: fep kiki lug kiki kiki OUT: BLUE GREEN BLUE GREEN GREEN GREEN BLUE GREEN
IN: tufa OUT: YELLOW
IN: tufa lug dax wif kiki OUT: YELLOW YELLOW RED GREEN RED RED YELLOW
IN: tufa zup kiki OUT: GREEN GREEN YELLOW
IN: dax kiki zup fep zup tufa zup tufa OUT: YELLOW YELLOW YELLOW YELLOW BLUE BLUE RED GREEN
IN: dax wif kiki lug tufa tufa OUT: RED GREEN GREEN YELLOW YELLOW GREEN RED RED
IN: kiki dax lug dax OUT: GREEN RED GREEN RED RED GREEN RED

*QUERY*
IN: fep dax wif kiki fep fep OUT: BLUE RED GREEN BLUE BLUE RED RED
IN: dax zup dax OUT: RED RED RED
IN: dax kiki wif kiki fep dax dax OUT: RED GREEN GREEN BLUE RED RED GREEN GREEN
IN: dax zup fep OUT: BLUE BLUE RED
IN: fep kiki wif fep OUT: BLUE GREEN BLUE GREEN GREEN
IN: fep tufa kiki OUT: BLUE YELLOW GREEN
IN: fep OUT: BLUE
IN: kiki wif fep wif fep OUT: GREEN BLUE BLUE BLUE BLUE GREEN GREEN
IN: tufa wif dax wif dax OUT: YELLOW RED RED RED RED YELLOW YELLOW
IN: dax wif dax OUT: RED RED RED RED

*GRAMMAR*
kiki -> GREEN 
 tufa -> YELLOW 
 dax -> RED 
 fep -> BLUE 
 u1 wif x1 -> [u1] [x1] [u1] [u1] 
 x1 lug x2 -> [x1] [x1] [x2] [x1] 
 x1 zup u1 -> [u1] [u1] [x1] 
 u1 x1 -> [u1] [x1] 
 